Fluid delivery device
A fluid delivery device includes an accumulator, a deformable fluid reservoir, a user-actuated valve, a fluid delivery channel and an application element. The accumulator accumulates pressure and houses the fluid reservoir. The fluid delivery channel couples the fluid reservoir on a proximal end and extends to a distal end. A user-actuated valve controls a flow rate of fluid passing through the fluid delivery channel from the fluid reservoir to the distal end in response to pressure in the accumulator being above a predetermined threshold. The application element is coupled to the distal end of the fluid delivery channel to facilitate dispersal of fluid from the fluid delivery channel.
This application claims priority of co-pending U.S. Provisional Patent Application Ser. No. 60/930,258, filed May 14, 2007. Priority of the aforementioned filing date is hereby claimed and the disclosure of the Provisional Patent Application is hereby incorporated by reference in its entirety.
TECHNICAL FIELDThe subject matter described herein relates to a fluid delivery device, and in particular, to a hair dye application device.
BACKGROUNDConventional techniques for applying hair color involve the application of liquid hair dye using brushes moistened with the dye. Such arrangements are imprecise in nature and often result in spillage of droplets of dye.
SUMMARYIn one aspect, a hair dye application apparatus includes a deformable fluid reservoir housing hair dye, a pressure inducing element (e.g., pressure accumulator, mechanical actuator, pressure source, etc.) to apply a positive pressure to the fluid reservoir, an application element (e.g., brush, etc.) to disperse the dye into hair, and a fluid delivery channel to deliver dye from the fluid reservoir to the application element in response to the positive pressure being applied to the fluid reservoir.
The pressure inducing element can comprise a pressure accumulator that can be pressurized either from an internal pressure source or an external pressure source (e.g., compressor, hand pump, etc.). If an external pressure source is utilized, then the pressure inducing element can also include a port that can be either permanently or detachably coupled to the external pressure source. The external pressure source, in some variations, is a pressurized cartridge and so the apparatus includes a fitting for receiving the pressurized cartridge. This fitting can include pressure release ports to ensure that the pressurized cartridge can be safely removed.
The apparatus can also include an actuation valve (which a user may depress) that is disposed between the fluid reservoir and the application element to selectively control a flow rate of dye to the application element. The fluid reservoir may be made of any material that is flexible so that upon the application of pressure, fluid contained therein can be expelled. In some variations, the fluid reservoir is a plastic pouch.
In an interrelated aspect, an apparatus includes an accumulator to accumulate pressure, a deformable fluid reservoir disposed within the accumulator, a fluid delivery channel coupled to the fluid reservoir on a proximal end and extending to a distal end, a user-actuated valve to control a flow rate of fluid passing through the fluid delivery channel from the fluid reservoir to the distal end in response to pressure in the accumulator being above a predetermined threshold, and an application element coupled to the distal end of the fluid delivery channel for dispersing fluid from the fluid delivery channel.
The details of one or more variations of the subject matter described herein are set forth in the accompanying drawings and the description below. Other features and advantages of the subject matter described herein will be apparent from the description and drawings, and from the claims.
Like reference symbols in the various drawings indicate like elements.
DETAILED DESCRIPTIONThe following makes reference to
A securing member 250 is configured to receive threads 230 on the accumulator 225 to secure the fluid reservoir 235 within the accumulator 225 as well as a diaphragm 240 which acts to regulate fluid flow passing therebetween and a mounting member 245. The mounting member 245 can be detachably coupled to a delivery channel 255 on a proximal end. The mounting member 245 may include a male extension that is operable to fit within a female orifice on the proximal end of the delivery channel 255. The mounting member 245 may also include coupling elements to connect to the fluid reservoir 235, and in some implementations, a piercing element to cause the fluid reservoir 235 to initiate fluid flow (for example, when the fluid reservoir 235 is a pouch). A distal end of the delivery channel 255 terminates at the dispensation outlet 270.
Intermediate the proximal end and the dispensation outlet 270 of the delivery channel 255 is a user actuated valve 260 which can selectively reduce (or completely turn off) the rate of fluid flow through the delivery channel 260. Attached outside the delivery channel 255 is a grip portion 265 which a user can grasp onto and that can extend approximately from the securing member 250 to approximately the dispensation outlet 270. A securing ring 275 can be used to couple a guide 275 to facilitate usage of the color wand 201 and an application member 285 (e.g., bristles or a hair brush). The application member 285 can be used to ensure uniform and/or selective application of the liquid onto the desired surface and can include a plurality of outlets to increase a surface area to which the hair dye is applied. The guide 280 can also be used to provide a visual estimation of the surface to which liquid is being applied and/or to remove obstructions (e.g., hair, etc.) to the dispensation outlet 270.
When activated, pressure is introduced into the accumulator 225 via the pressurization inlet 220 so that the liquid reservoir 235 is biased inward. This in turn causes liquid within the liquid reservoir 235 to pass through the diaphragm 245 into the delivery channel 255 and out the dispensation outlet 270 (assuming that the valve 260 is open (or at least not completely closed)) and through the application member 285 into the hair 130 of the consumer 120.
The embodiment in
Although a few variations have been described in detail above, other modifications are possible. For example, certain components of the color wand may be integrated or comprised of multiple sub-parts depending on the desired configuration. In some implementations, the fluid delivery channel and the brush are integrated and disposable. Other embodiments may be within the scope of the following claims.
Claims
1. A hair dye application apparatus comprising:
- a deformable fluid reservoir to house hair dye;
- a pressure inducing element to apply a positive pressure to the fluid reservoir;
- an application element to disperse the dye into hair; and
- a fluid delivery channel to deliver dye from the fluid reservoir to the application element in response to the positive pressure applied to the fluid reservoir.
2. An apparatus as in claim 1, wherein the pressure inducing element comprises a port coupled to an external pressure source.
3. An apparatus as in claim 2, wherein the external pressure source is a pressurized cartridge.
4. An apparatus as in claim 2, wherein the external pressure source is a compressor.
5. An apparatus as in claim 1, wherein the pressure inducing element comprises an internal pressure source.
6. An apparatus as in claim 5, wherein the internal pressure source is a mechanical actuator to apply a mechanical force to the fluid reservoir.
7. An apparatus as in claim 6, wherein the mechanical actuator is a plunger.
8. An apparatus as in claim 6, wherein the mechanical actuator is motorized.
9. An apparatus as in claim 6, wherein the mechanical actuator includes at least one gear.
10. An apparatus as in clam 9, wherein the at least one gear includes a worm gear.
11. An apparatus as in claim 1, further comprising a grip portion disposed between the fluid reservoir and the application element.
12. An apparatus as in claim 1, wherein the application element is a brush.
13. An apparatus as in claim 12, wherein the fluid delivery channel includes a plurality of openings dispersing dye within the brush.
14. An apparatus as in claim 1, further comprising an actuation valve disposed between the fluid reservoir and the application element to selectively control a flow rate of dye to the application element.
15. An apparatus as in claim 14, further comprising a control valve disposed within the fluid delivery channel between the fluid reservoir and the actuation valve, the control valve adapted to control direction of dye flow through the apparatus.
16. An apparatus as in claim 15, wherein the control valve is a one-way valve that allows fluid flow toward the application element and prevents fluid flow of dye into the fluid reservoir.
17. An apparatus as in claim 14, further comprising an adjustable element disposed between the fluid delivery channel and the application element to selectively control a flow rate of dye to the application element.
18. An apparatus as in claim 1, wherein the fluid reservoir is a pouch.
19. An apparatus comprising:
- an accumulator to accumulate pressure;
- a deformable fluid reservoir disposed within the accumulator;
- a fluid delivery channel coupled to the fluid reservoir on a proximal end and extending to a distal end;
- a user-actuated valve to control a flow rate of fluid passing through the fluid delivery channel from the fluid reservoir to the distal end in response to pressure in the accumulator being above a predetermined threshold; and
- an application element coupled to the distal end of the fluid delivery channel for dispersing fluid from the fluid delivery channel.
20. An apparatus as in claim 19, further comprising a diaphragm disposed between the fluid reservoir and the fluid delivery channel to regulate fluid flow from the fluid reservoir.
21. An apparatus as in claim 19, further comprising a mounting member disposed between the fluid reservoir and the fluid delivery channel that includes a protrusion for insertion and coupling to an orifice in the fluid delivery channel.
22. An apparatus as in claim 19, further comprising a guiding element disposed between the distal end of the fluid delivery channel and the application element to facilitate selective fluid delivery.
23. An apparatus as in claim 19, wherein the accumulator comprises a pressurization port that is adapted to be coupled to an external pressurization source.
24. An apparatus as in claim 19, further comprising an internal pressure source coupled to the accumulator.
25. An apparatus as in claim 19, wherein the internal pressure source comprises a compressor.
26. An apparatus as in claim 19, wherein the internal pressure source comprises a mechanical actuator to apply a mechanical force to the liquid reservoir.
27. An apparatus as in claim 19, wherein the accumulator comprises a pressurization chamber and a liquid reservoir chamber separated by the user-actuated valve.
Type: Application
Filed: May 14, 2008
Publication Date: Dec 18, 2008
Patent Grant number: 8146604
Inventors: Clifford Wright (San Diego, CA), Richard Ouellette (Poway, CA)
Application Number: 12/152,667
International Classification: A45D 24/22 (20060101);